When walking makes your legs hurt.  We know about arthritis, but four other conditions can effect your legs and make walking painful.
D001168:Arthritis / Q000150:complications*; D003929:Diabetic Neuropathies / Q000150:complications*; D006801:Humans; D035002:Lower Extremity / Q000503:physiopathology*; D008161:Lumbosacral Region; D010146:Pain / Q000209:etiology* / Q000503:physiopathology*; D016491:Peripheral Vascular Diseases / Q000150:complications*; D013130:Spinal Stenosis / Q000150:complications*; D014689:Venous Insufficiency / Q000150:complications*; D016138:Walking